Search a number
-
+
123033047 is a prime number
BaseRepresentation
bin1110101010101…
…01010111010111
322120111201121112
413111111113113
5222444024142
620113005235
73022522634
oct725252727
9276451545
10123033047
11634a3605
123525381b
131c649627
14124a918b
15ac04382
hex75555d7

123033047 has 2 divisors, whose sum is σ = 123033048. Its totient is φ = 123033046.

The previous prime is 123033023. The next prime is 123033067. The reversal of 123033047 is 740330321.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (740330321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123033047 - 26 = 123032983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123033067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61516523 + 61516524.

It is an arithmetic number, because the mean of its divisors is an integer number (61516524).

Almost surely, 2123033047 is an apocalyptic number.

123033047 is a deficient number, since it is larger than the sum of its proper divisors (1).

123033047 is an equidigital number, since it uses as much as digits as its factorization.

123033047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 23.

The square root of 123033047 is about 11092.0262801708. The cubic root of 123033047 is about 497.3635183642.

Adding to 123033047 its reverse (740330321), we get a palindrome (863363368).

The spelling of 123033047 in words is "one hundred twenty-three million, thirty-three thousand, forty-seven".